Home / 2,901.70-4,353.30-1,257.87

Finding the Fourth Proportional to 2,901.70, 4,353.30 and 1,257.87

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Solution

The fourth proportional to 2,901.70, 4,353.30 and 1,257.87 is: 1,887.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,901.70 : 4,353.30 = 1,257.87 : x
  2. Step 2: Convert to fraction form
    2,901.70/4,353.30 = 1,257.87/x
  3. Step 3: Cross multiply
    2,901.70x = 4,353.30 × 1,257.87
  4. Step 4: Simplify right side
    2,901.70x = 5,475,885.47
  5. Step 5: Solve for x
    x = 5,475,885.47/2,901.70
  6. Step 6: Final answer
    x = 1,887.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.